I think you still need that if you want to overclock the sdhost driver. Anyone loading the sdhost driver but without an overclock now doesn't need the "dtoverlay=sdhost" config.txt entry at all.
Texture Cache Maintenance Utility: Preload your texture cache for optimal UI performance. Remotely manage media libraries. Purge unused artwork to free up space. Find missing media. Configurable QA check to highlight metadata issues. Aid in diagnosis of library and cache related problems.
